Type-writing machine.



No. 635,946. Patented Oct. 3!, I899 G. H. TREADGOLD.

TYPE WRITING MACHINE.

(Application filed June 8, 1898.) (No Model.) 3 Sheets-Sheet I.

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No. 635,946. Patented Oct. 3|; I899. G. H. TREAD'GOLD.

TYPE- WRITING MACHINE.

(Application filed June 8, 189B.)

3 Sheets-Sheet 2 I (No Model.)

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N0. 635,946. Patented Oct. 3|, 1899.

G. H. TBEADGOLD. TYPE WRITING MACHINE.

(Appl cat on in d June 5 189B) 3 Sheets-Sheet 3,

(No Modal J a uma. WASHIN UNITED STATES PATENT OFFICE.

GEORGE H. TREADGOLD, OF PORT HURON, MICHIGAN, ASSIGNOR OF ONE- HALF TO PETER HANES, OF SAGINAW, MICHIGAN.

TYPE-WRITING MACHINE.

SPECIFICATION forming part of LettersPatent No. 635,946, dated October 31, 1899. Application filed June 8, 1898. Serial No. 682,922. (No model.)

T0 to whom it may concern.-

Be it known that I, GEORGE H. TREADGOLD, a citizen of the United States, residing at Port Huron, in the county of St. Clair and State of Michigan, have invented certain new and useful Improvements in Type-Writing Machines, of which the following is a specification, reference being had therein to the accompanying drawings.

My invention relates more particularly to that class of type-writer machines which are adapted for writing in books; and the invention consists, first, in the means employed for alternatively actuating two type-arms by a single key; further, in the means of securing and guiding said type-arms; further, in the inking mechanism; further, in the means for holding the book, and, further, in the peculiar construction, arrangement, and combination of parts, all as more fully hereinafter described and claimed.

In the drawings, Figure 1 is a plan view of my machine. Fig. 2 is an enlarged vertical central section through the carriage. Fig. 3 is a horizontal section on line a: m, Fig. 2. Fig. 4 is a perspective view of the letter-feed mechanism. Fig. 5 is a bottom plan thereof. Fig. 6 is a section on line y y, Fig. 5. Fig. 7 is a vertical section through one corner of the base. Fig. 8 is a section through one of the ribbon-holding drums. Fig. 9 is an end elevation thereof. Fig. 10 is a perspective view showing the line-feed mechanism. Figs. 11 and 11 are detail perspective views of portions of the type-arms and frame, respectively, showing the manner of pivoting said arms. Fig. 12 is a detail View of the case-key and mechanism. 7

A is a suitable base or table adapted to support the book, pad, or paper upon which it is desired to write.

B is a frame vertically adj ustably secured to the base A, preferably by means of the corner rack-posts O, engaging with pinions D on the shafts E, the latter being journaled in bearings in the base and provided with adjusting knobs or handles E at one side thereof. The side bars a of the frame B are withdrawn into slots 19 in the base and at one end project outward and upward and are connected by the cross-bar c F is a traveling frame hinged to and slidingly secured upon the bar 0 and extending laterally over the base. This frame forms the track for the cross-traveling frame or carriage G, to which the printing mechanism is secured. The frame F is also provided with suitable feed mechanism for shifting its position on the bar 0 to produce the line-feed, the construction of which mechanism will be hereinafter described.

The frame or carriage G comprises an annular base having the opposite segmental portions d, which are provided with a series of cross-slots a, formed in lines radiating from the center of the frame.

II is a series of type-arms pivotally secured in the slots e and adapted to be guided thereby so that each will swing to a common point in the center of the frame. The pivotal connection for these arms is preferably formed by stringing all the arms upon one side of the frame on a wire f, which when said arms are in position in their slots engages with a groove f in the side of the base, the end of the wire being secured in any suitable manner, such as by the set-screws g.

Each type-arm is provided with an actuating arm or extension h, which projects outward through the slot 6.

I is a series of links pivotally secured at their lower ends to the arms h and extending upward through suitable guides on the frame G.

J is a series of key-levers fulcrulned upon a shaft or cross-bar J, extending across the frame G. Each of these key-levers is connected to a pair of type-arms, comprising the corresponding arms on opposite sides of the frame, by means of an evener connection, which preferably consists of a lever K, 0011- necting the upper ends of the links I and centrally connected by a link L with the keylever.

To prevent the actuation of more than one arm at a time, I provide .means for alternatively locking the opposite series of arms. In the drawings I have shown this as comprising the frame M, slidingly secured to the base of the frame G, preferably by the pins M engaging with slots M and having on 0pposite sides the segmental flanges i, adapted IOO to hook over the projecting ends of the actuating-arms h of the type-arms, the arrangement being such that when one of the flanges i is engaged with one series of arms the other flange will be out of engagement with the opposite series of arms.

N is a key for shifting the frame M. This key is also preferably fulcrumed on the shaft J and connected by the link 0 to the rock arm or lever P, which is fulcrumed on the frame G and engages with a lug or pin P connected to the frame M. The rock-arm P is provided with a T-shaped slotted head P, to which the link 0 is adjustably secured by a pivot-pin and clamping-nut connection 0, so that by shifting said link to one side or the other of said head it will cause the keyN to shift the frame M in opposite directions when said key is depressed.

Q is a spring for returning the key N and frame M. The frame or carriage G is seen red upon the frame F, so as to be adapted to travel thereaeross during the operation of the machine. To this end the frame F preferably comprises the lower side bars j, adapted to rest upon the book or paper, and the upper track-bars 7c and l, on which the frame Gr travels, the latter having a sliding hinge connection with the rear bar 70, formed by apertured lugs or cars and a pinion m, engaging with a rack formed on the bar Z.

To draw the carriage G across the frame F, a tape It is provided, which is attached at one end to the carriage and at its opposite end to a spring-drum R at the end of the frame F.

The pinion m is journaled on a forwardlyextending bracket on the frame Gand is provided with an escapement by means of which it is permitted to travel a fraction of a revolution after each operation of a key. This escapement comprises a pin or dog 71, adapted to engage with a series of notches or ratchetteeth on the pinion m and secured to an arm or disk 0, which has a limited oscillating movement on the frame, and a spring 0 for drawing it in one direction. n is a spring for pressing the pin a into engagement with the ratchet-teeth.

2.) is a universal bar extending across all of the keys J and connected at the end to the rock-arm p, which is connected to a pawl 2J2, extending down in proximity to the dog 92, all so arranged that whenever one of the keys J is operated the universal barp will be lifted, rocking the arm p and causing the pawl 19 to press the dog 01 out of engagement with the notch in the arm or disk 0 and allow the spring 0 to draw said disk into a position where the dog 02 will engage with another notch therein, and upon the lifting of the pawl again the spring-tape R will draw the frame forward, causing the pinion m to travel upon the rackZ until the limit of the oscillatory movement of the disk 0 is reached.

The movement of the frame F upon the rod 0 to produce the line-feed is preferably effected by forming a rack upon the inner side of said rod, with which a pinion g on a bar g of the frame F engages. q is another pinion having a ratchet connection g with the pinion g, which will cause the latter to move with the former when turned in one direction, but will permit of an independent movement in the opposite direction.

0' is ashort rack-bar on the frame G,adapted when the latter is moved to the left on the frame F to engage with the pinion q, turning it and the pinion q, and thereby causing the frame F to travel along the rod 0. \Vhen the rack 0' moves in the opposite direction, the ratchet connection will allow the pinion q to move without turning the pinion q.

S is an inking-ribbon which is wound upon the drums S and S at opposite ends of the frame G and extends across beneath said frame. To feed this ribbon, I preferably employ mechanism for shifting it laterally with each operation of the keys and longitudinally after each line, the construction of the mechanism being as follows:

T and T are horizontally-arranged spindles journaled in projecting lugs or brackets at the end of the frame G and having formed thereon endless double helical grooves s.

U and U are longitudinally-slotted sleeves surrounding said spindle and upon which the drums S S are respectively sleeved.

15 shows pins or swivel-heads secured to the drums S and S which, projecting through the longitudinal slots i in the sleeves U U, engage with the helical grooves s in the spindles T T. One of the spindles is provided at its outer end with a pinion 15, adapted to mesh with a rack formed on the upper face of the bar l of the frame F, and at its opposite end is connected by bevel-gears u and an intermediate shaft to with the other spindle.

The sleeves U U are provided with ratchetwheels 11, which have spring retaining-dogs o engaging therewith and are adapted to be intermittently actuated by pawls w on a rackframe V, having an operating-handle V, said pawls being adapted to be thrown out or into engagement with said ratchet-wheels.

In the operation of the machine the book or paper, such as 2, may be first placed upon the table A and the frame B adjusted in height by turning the knobs or handles E, which actuate the pinions D and raise or lower the rack-posts (J. This will bring the frame F into a position to rest upon the book, which, if desired, may be clamped in position by lat erally-projectin garms or hooks 00 on the frame B. The frame F being in its upper position on the bar 0 and the carriage G to the left on the frame F, the keys may now be operated in the usual manner. Each actuation of a key will cause a movement of the universal bar 19, which will actuate the pawl 19 and operate the escapement, allowing the springtape R to draw the carriage G the space of one letter. This movement of the carriage G will cause a rotation of the pinion t, which in turn will rotate the spindles T and T, causing the pins t in the helical grooves to be forced along in the slots in the sleeves U U and shifting the ribbon laterally. The width of the ribbon is such that when the end of the line is reached the drums and ribbon will have been fed across the machine. The carriage G is then returned by taking hold of the handle V and lifting sufficiently to raise the pinions t and m out of engagement with the racks on the bar Z, after which the frame may be drawn to the left and lowered to rcengage the pinions with their racks. This lifting of the handle V will rock the frame V and cause one of the pawls U), which is in engagement with the ratchet-wheel '0 on the sleeve U, to turn said sleeve and with it the drum S, thus feeding the ribbon longitudinally. The movement of the carriage G to its position at the left will also cause the rack r to operate the pinions q and i1 and shift the frame F downward the space of one line. In the operation of writing a second line the drums and ribbon will be fed laterally in the reverse direction by the reverse portions of the endless helical grooves s, and when the longitudinal feed of the ribbon has unwound it completely from the drum the opposite pawl W may be thrown into engagement with its ratchet-wheel 'U, which will cause the ribbon to be fed longitudinally in the reverse direction.

The type-arms H are arranged so that all of the capitals or characters belonging to the upper case are at one side of the machine and the corresponding small letters and other characters belonging to the lower case are on the opposite side of the machine, the corresponding letters and characters being connected to common keys, as before described. Either case may be thrown into normal operation by shifting the link 0 to one side or the other of the slotted T-shaped head of the rockarm P, which will correspondingly shift the frame M, so as to cause one of its fiangesi to look all the type-arms of the opposite case. The opposite case can, however, be thrown into operation at any time by pressing the case-key N, which will shift the frame M to its opposite position, the spring Q returning it again as soon as the key is released.

Although I have described my type-writing machine as having the type-arms and keylevers mounted on a movable carriage it is obvious that they might be arranged upon a stationary frame and the paper be carried upon a movable carriage, as in the usual construction of machines.

What I claim as my invention is 1. In a type-writing machine, the.combination with a key-lever and two type-arms, of an evener-lever connecting said key-lever to said type-arms and means for alternatively locking said type-arms.

2. In a type-writing machine, the combination of an annular frame, two series of typearms pivot-ally secured upon opposite sides of said frame, a series of key-levers, a series of evener-levers connecting the corresponding arms in the two series to common key-levers, and means for alternatively locking the two series of arms.

3. In a type-writing machine, the combination of a frame, two series of type-arms pivotally secured upon opposite sides of said frame, each type-arm being provided with an actuating arm or heel, a series of key-levers, a series of evener-levers, each connecting actuating-arms of corresponding type-arms to a common key-lever, and shifting universal bars adapted to be engaged with the actuating arms or heels of each series to alternatively lock them from movement.

4:. In a type-writing machine, the combination of an annular frame comprising opposite segmental portions, each having a series 'of cross-slots in lines radiating from the center of said frame, and a longitudinal groove, two series of type-levers adapted to engage said radial slots with their actuating-arms projecting out therefrom,- a wire upon which each series of arms is strung engaging said longitudinal groove and evener-levers connectin g the actuating-arms of the corresponding type-arms of the two series, an actuating key-lever for each evener and shifting uni-- versal bars adapted to alternatively lock the projecting ends of the two series of type-levers.

5. In a type-writing machine the combination with the bed or table of a vertically-adjustable frame adapted to clamp the paper or book to said table, and having a rod at one side thereof, a traveling frame extending across the table hinged to said rod and adapted to be fed along the same and a carriage carrying the printing mechanism adapted to be fed across said traveling frame substantially as described.

6. In a type-writin g machine, the combination with the traveling carriage, carrying the printing mechanism and a frame forming a track therefor, adapted to rest on the paper, of feed mechanism for said carriage comprising a spring-drawn tape for drawing said carriage across said frame, a pinion on said carriage and a rack on said frame with which said pinion engages, a dog engaging notches or ratchets on said pinion an arm or disk carrying said dog having a limited rotary movement with said pinion, and a spring for returning it, a pawl adapted to disengage said dog from one of said notches and allow it to engage another and means for actuating said pawl at each operation of the printing-keys.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE E. TREADGOLD.

Witnesses:

Gno. S. CLARK, AUGUSTA LANGNAU. 

